Valve



J. H. SUMMERS AND E. S. KIRK.

VALVE.

APPLICATION FILED MAR. 28, 1921.

1,67% 1 396 atented May 24, W21.

NIT ES PA ENT o-FFr-ca 1on1: 1r; SUMIERS annnnwann s. K131i; or rar'r,

s ecifications; Letters Pat ant. Patented May'24, 1921; Substitute for application SeriaiNo. 290,607, filed'April 16, 1919.

r111; application ala M ren 28,1921.

Serial No. 456,225

To all whom it may concern:

Be it lm'own that we, JOHN H. SoMrrnns and EDWARD S. KIRK, citizens of the Unlted States, residing at Taft, in-the county of Kern and State of California, have lnvented certain new and useful Improvements 1n Valves, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to valves, and particularly to valves which are adapted to be used in high pressure oil lines, though the valve is also adapted to be used under many other circumstances.

The general object of this invention is toprovide a valve including a valve body having a passage through it and slidlngly arranged to move into pos1t1on across a pipe line or out of such position, said valve body having a swinging check valve mounted thereon so that when the valve b0 1s 1n the first named position, fluid may pass the swinging check va.lve,'the check valve preventing its return, but that when 1t 1s desired to permit the return of fluid through the pipe, the check valve maybe; raised to thereby permit the return of the fluid.

tion of this kind so made that one man may readily operate it and do away with the necessity now present in this art of removing check valves in order to permit the return fiow of fluid or in order to pump back the oil, which removal of the check valve costs an amount which, when multiplied by the number of checkvalves which have to be removed, amounts to many hundreds of dollar-sin the aggregate.

Other objects will appear in the course of the following description.

Our'invention is illustrated in the accompanying drawings, wherein 2- Figure 1 is a longitudinal sectional view of a valve casing and'the valve operating mechanism, the View being partly in section;

Fig. 2,is a vertical sectional view on the line 2-2 of Fig. 1 showing the valve closed;

Fig. 3 is a like view to Fig. 2, but showing the valve opened, that is, the valve body partly raised.

Referring to these figures, and particularly to Figs. 1 and 2, 10 designates two sections of a pipe line, between which is disposed the valve casing 11 having flanges at its ends abutting against like flanges on the;

pipe line sections and bolted t ereto. Thef valve casing 11 is formed with a bonnet 12 extending-upward and at an lnclination'to the axis of the valve casing and formed at its fiipper .end with flanges 13. The valve casing 1s (formed with a valve seat '-14=,the

,sides of the valve casing being formed with gu1de flanges 15, and operating against-this .seat and having a width,equal to. the inswingingly' mounted upon the valve body is a clapper valve or check valve designated 18. This check valve is shown as concavo-convex 1n form and is provided with ears 19 entering recesses in the valve body and pivoted to the valve bod by means of a transverse p1vot pm 20. e do not wish, however, to

.be limited to this construction. It will be obvious,-of*course, that the check valve 18- will swing outward, that is, toward the left A further object is to provide a construcin Fig. 1, upon pressure against the concave face of the valve andthat it will swing against its seat-21 upon ressure in the opposlte direction. The va ve casing 11 is enlarged at 22 to permit the valve 18 to swing fully upward. For the purpose of shifting the valve body into or out of the bonnet or into orout of its operative position, we swivel to the valve body the screw shaft'23 which at its lower end is provided with a head 24 seating within a recess 25 in the upper face of the valve body and held in place by an annulus 26 also formed on its under face with a recess to receive said head, this annulus 26 being connected to the valve body by screws or bolts or in any other suitable manner. Thus the shaft 23 is swiveled to the valve body,

The shaft 23 is longer than the bonnet '12 and passes through a head 27 bolted to the flanges 13' of the bonnet, this head being provided at its center with a stuffing box 28 through which the shaft 23 passes. The upper end of the shaft 23 is screw-threaded as at 29 and passes through a yoke 30, this yoke being bolted to the flanges 13. The shaft 29 passes through an opening in the yyol'ie at itsupper end and the up I per screwthreaded end of the shaft is a'nut having the-form of; a wheel 31 whose hub is) ,interiorly-scrw-theaded, It w1l1 be obvlous now that a rotation of the wheel in one direction Will cause the elevation of the "valve bodybutif the wheel be rotated in the oppo site direction, theweight of the valve. body I will cause the valve body to move'downward into its operative position. Of course,

' means may be provided for positively shifting this valve body both downward and upward andwe de not wish to be limited to anyparticular means for raising or lowering the valve body.

{The operation of this valve will be obvious from what has gone before. Under normal circumstances, the valve body 16 is in the position shown in Figs. 1 and 2 so that the central opening of the valve body forms the continuation of the inlet bore of ,the valve casing. Under these circumstances, the

check valve 18 acts in the ordinary manner to permit flow of fluid in one direction but prevent a return of the fluid. Now if 1t be desired to permit a return of the fluid, the, wheel 31. is turned in the proper direction to lift the shaft 23 and this lifts the valve body to a -greater or less extent as may be desired, permittm a return of the fluid. The moment that t e valve body 16 back of oil which has passed the check valve.

It will be noted that by cutting away the forward face of the body, the check valve 18is supported so that its outer face does not project beyond the outer face of the valve body,- thus permitting the valve body and check valve to move upward into the bonnet.

, While we have designed this valve with special reference to its use in high pressure -oil pumping systems, yet it is obvious that it might be used in a variety of different places and under many different circumstances, with great advantage. While we have illustrated a construction which is thoroughly effective for the purpose for which it is designed, yet it is obvious that many changes may be made in the details of construction, without departing from 'the spirit of the invention as defined in the applended claimsi aving' thus described our invention,.what 'g'welclaim' isz' 1. A valve casinglli'aving a longitudinally extendingbore, and a bonnet rectangular. in crosssection extending from the casing, a valve body having a sliding fit in the'bonnet and movable into or out of said bonnet andinto or out of a 'positionacross 'the bore ofthe'valve "casing and having an opening alining with the bo're,a check valve mounted upon the body, and means extending through said bonnet for manually shifting the body-into or out of operative position, said means including a screw-threaded shaft operatively engaging the bonnet and the valve body. v v T 2. A valve casing having a longitudinally extending bore, and a bonnet rectangular in cross section extendin from the casing, a valve body having av sllding fit in the bonnet and movable into or out of 'said bonnet and into or out of a position across the bore of the valve casing and having an opening alining with the bore, a check valve mounted upon the body, and means extending through said bonnet for manually shifting the body into or out of operative position, saidmeans inat a eluding a shaft extending through the b'onnet and having swiveled engagement with the valve body and screw-threaded at its up-. per end, and a nut having screw-threaded engagement with the shaft.

3. A valve casing having a longitudinally extending bore-and an inclined seat, the casing being formed with a bonnet just forward of the seat, a valve body having a sliding fit in the bonnet and shiftable into or out of the bonnet and bearing against the seat and having an axial opening registrable with the bore of the valve casing,a check valve swingingly mounted upon the body, the-body being cut away upon one face to-accommodate the check valve, the check valve being'normally supported inward of the faces of said body whereby the body and check valve may move upward into the bonnet, and manually operable means coacting with the bonnetand operatively connected to the body for shifting the body into or out of operative position within the valve casing.

In testimony whereof we hereunto aflix our signatures. I

JOHN H. SUMMERS. EDWARD S. KIRK. 

